Dickson THV97 Temperature Humidity Recorder 4" chart Dickson THV97 Temperature Humidity Dew Point Recorder, customer return, includes box of charts as shown. Missing battery cover, and small sheet metal screw to attach back cover. Untested, I'm sure it needs to be sent in for recalibration. Manufacturer specifications: Economy Temp/Humidity Recorder, Case Size 6.25 x 6 x 3.5 Inches, Chart Size 4 Inches, Temperature Range 0 to 100 Degrees Fahrenheit, 7 Day Recording Time Shipping/packaging/insurance will be added to your bid. Click on lower right for shipping estimate to your zip code. Terms Conditions: California Residents please add 7.375% sales tax. Cashiers checks, bank checks, postal money orders, business checks, personal checks, as prepayment are accepted. No cod's. Business checks and personal checks may be held up to 10 business days before item is shipped. We do ship some items internationally, please inquire. A Handling charge may be added for international shipments. All sales final with no warranties unless stated otherwise.